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underlayment

underlayment

7.3
A thin pad that goes under a floor or carpet to make it warmer and quieter
  • noun
  • /ˌʌndərˈleɪmənt/
  • Specialized
translation icon : bajo piso
  • We had an aging roof that was starting to lose shingles and was missing proper underlayment and ice/water shield.
  • floor underlayment
  • foam underlayment

Examples

  • To improve comfort and reduce noise, professionals recommend installing a foam underlayment beneath the laminate flooring.

  • Such rugs and carpet, along with the cushion or underlayment, should be removed.

    Academic text (1994)
  • What Obama says about change and the American dream could be an underlayment for socialism and communism.

    Blog text (7)
  • Bauman notes that two of the most promising uses for Vistamer may be with polyurethane foam as carpet underlayment and in spreadable coatings and paints.

    Academic text (1997)
  • The contractor explained that a water-resistant underlayment is essential for preventing damage in areas prone to moisture.

  • Before laying the tiles, make sure to place a high-quality underlayment for better insulation and support.

Synonyms

underlay
vsunderlayment
1 4.6

A thin layer placed under a carpet or floor to make it softer and warmer

is the broader term for material placed under floor coverings for support
rug pad
vsunderlayment
1 3.8

A thin material put under a rug to stop it sliding, protect the floor, and make it softer

is used under many floor coverings for support and insulation, not just rugs
underthing
vsunderlayment
1 8.2

A padded layer placed under something to protect it

is focused on floor and carpet support rather than any protective underlayer
sublayer
vsunderlayment
1 5.1

A thin part under another surface, for example under paint or soil

is specific to floor coverings and implies support and insulation as purpose
underlayer
vsunderlayment
4.2

A material placed under something else to protect or support it

is specific to floor and carpet use rather than any layered base
carpet pad
vsunderlayment
  • US
2.9

A layer of material under a carpet that makes it softer, warmer, and quieter

is more general, covering underfloor materials beyond thin soft supports
underfelt
vsunderlayment
  • UK
7.7

A thick padding that sits under a carpet to make the floor softer and warmer

is the general support layer and can be made from many materials

How Supportive

subfloor
  • Specialized
1 4.9
underlayment
  • Specialized
7.3
cushioned
3.4
pad
118 1.4
mat
136 1.0

Surface Forms

underlayment singular
underlayments plural

Morphology

underlayment = underlay (semi-transparent) = under + lay + ment

The word is built from the recognizable base 'underlay' plus '-ment'; the specialized meaning as a material layer is still fairly inferable but more technical than everyday usage.

Etymology

Underlayment comes from under- meaning 'below', lay meaning 'to place', and the ending -ment that makes it a 'thing'. So an underlayment is literally something 'placed below' the floor, a layer that supports the floor and helps keep it warm and quiet.